junkyardjeff Posted June 8, 2014 Share Posted June 8, 2014 The motor is a 59 or 60 but since it did not have a intake I am not sure if its a 371 or 394 so is there any way I can tell exactly what it is. Link to comment Share on other sites More sharing options...
D Yaros Posted June 8, 2014 Share Posted June 8, 2014 What is the color of the engine/valve covers? Are you able to tell? I believe gold would be a 371. Aqua/Green would be a 394. Link to comment Share on other sites More sharing options...
junkyardjeff Posted June 8, 2014 Author Share Posted June 8, 2014 The motor had been painted blue. Link to comment Share on other sites More sharing options...
Guest Posted June 9, 2014 Share Posted June 9, 2014 Click on the link Jeff;[h=3]oldsmobile block casting numbers[/h]<cite class="_Pd" style="color: rgb(0, 102, 33); font-style: normal; font-size: 13px;">www.v8volvo.se/mekartips/.../oldsmobile/gjutnummer-block.html</cite>OLDSMOBILE BLOCK CASTING NUMBERS. Blocks 1949 - ... Facing the front of theengine, at the top surface of the timing chain area, to the left of the oil fill Link to comment Share on other sites More sharing options...
d2_willys Posted July 1, 2014 Share Posted July 1, 2014 Look at the numbers on the left cylinder head. If the letter code is C, then you have a 371. If you have a C and 500 or more, then you have a 60 Olds 371. You can always remove one of the cylinder heads and check bore, along with recessed piston tops. The recessed piston tops were 1960 371. Link to comment Share on other sites More sharing options...
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